REDHAT-BUG-2427703: High severity pnpm vulnerability

Published Jan 7, 2026
·
Updated

pnpm is a package manager. Versions 10.26.2 and below store HTTP tarball dependencies (and git-hosted tarballs) in the lockfile without integrity hashes. This allows the remote server to serve different content on each install, even when a lockfile is committed. An attacker who publishes a package with an HTTP tarball dependency can serve different code to different users or CI/CD environments. The attack requires the victim to install a package that has an HTTP/git tarball in its dependency tree. The victim's lockfile provides no protection. This issue is fixed in version 10.26.0.

Affected Software

1 affected component
pnpm<=10.26.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade pnpm to a version that resolves this vulnerability.

    Fixed in 10.26.0
  2. Upgrade

    Upgrade pnpm to a version that resolves this vulnerability.

    Fixed in 10.26.2

Event History

Jan 7, 2026
Data Sourced
via Red Hat·10:02 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2427703?

The severity of REDHAT-BUG-2427703 is classified as high with a score of 7.

2

How do I fix REDHAT-BUG-2427703?

To fix REDHAT-BUG-2427703, upgrade pnpm to version 10.26.3 or later.

3

What vulnerability does REDHAT-BUG-2427703 address?

REDHAT-BUG-2427703 addresses the issue of pnpm storing HTTP tarball dependencies in the lockfile without integrity hashes.

4

What are the potential risks associated with REDHAT-BUG-2427703?

The potential risks associated with REDHAT-BUG-2427703 include the possibility of an attacker serving different content on each install due to the absence of integrity hashes.

5

Which versions of pnpm are affected by REDHAT-BUG-2427703?

pnpm versions 10.26.2 and below are affected by REDHAT-BUG-2427703.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203